The process was quite fast in the beginning (took almost 2 months total).

I was asked to complete a take-home assignment. Once I finished, they invited me to an onsite interview. I had 4 different meetings:

• Soft skills and project management
• System design-related conversations with the founder and Director of Engineering in NY
• Two more with engineers from NY and remotely, mostly from Europe.

I was asked some questions about:

• Testing
• Code design patterns, regarding clean architecture, MVVM, VIPER, etc.
• Some project testing questions and, of course, CI.

I believe I nailed all questions except two:

• One regarding CoreData: I was asked what NSManagedObjectContext is. I couldn't remember it, but who asks these kinds of memory-based questions anyway?
• Lastly, I believe I answered poorly a problem regarding refactoring an old codebase.

After that point, the recruiter I was in contact with arranged 3 different meetings and didn't show up to any of them. It took him 2 weeks to respond, saying they had some concerns and did not want to move forward with my application any further.

That is quite fair. They wanted to move forward with other candidates; however, I asked for some feedback in return for my time investment. I haven't heard any feedback.

I find this very rude. Recruiters are not the companies, but they represent the companies, and one recruiter can damage the whole image of the company.

One algorithm question was about finding the common prefix of a given string array.

One iOS-related problem concerned downloading images for an iOS client and optimizing the network call count, depending on the number of simultaneous network calls.